RS6 FPCAP Aluminum Electrolytic Capacitors Nichicon RS6 FPCAP Aluminum Electrolytic Capacitors feature the same benefits as FPCAPs in addition to large capacitance range up to 560µF. Nichicon RS6 FPCAP Capacitors offer low ESR, high ripple current capability, RoHS compliance, long life, high reliability, and a low-profile design that saves board space. Applications that include switching power supplies and DC/DC converters, backup power supplies of CPUs, and miniature high-power supplies.